Sub Pulse

[elofty]

My sub seems to randomly start pulsing, sometimes quick sometimes slow. does anyone know what causes this? it is gettin rather annoying.

Cheers

[Martin]

is it not the music?

[daz456]

is the amp earth properly?

[elofty]

amp earth is fine, it does it even if its not playin anythin. just random tho, not done it for a while now...

[J4MIE_P]

i've got a prob with mine aswell, when i turn on the ignition i get a thump noise from my subs but after the thump there fine, is that a faulty earth connection or what?